Home / 2,069.65-2,853.32-1,405.35

Finding the Fourth Proportional to 2,069.65, 2,853.32 and 1,405.35

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Solution

The fourth proportional to 2,069.65, 2,853.32 and 1,405.35 is: 1,937.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.65 : 2,853.32 = 1,405.35 : x
  2. Step 2: Convert to fraction form
    2,069.65/2,853.32 = 1,405.35/x
  3. Step 3: Cross multiply
    2,069.65x = 2,853.32 × 1,405.35
  4. Step 4: Simplify right side
    2,069.65x = 4,009,913.26
  5. Step 5: Solve for x
    x = 4,009,913.26/2,069.65
  6. Step 6: Final answer
    x = 1,937.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.